| Country: | Northern Territory |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 11 March 2000 |
| Party1: | Country Liberal Party |
| Popular Vote1: | 1,694 |
| Percentage1: | 51.0% |
| Swing1: | 13.4pp |
| Candidate2: | Ian Fraser |
| Party2: | Australian Labor Party (Northern Territory Branch) |
| Popular Vote2: | 873 |
| Percentage2: | 26.3% |
| Swing2: | 0.7pp |
| Candidate3: | Susan Bradley |
| Party3: | Independent politician |
| Popular Vote3: | 551 |
| Percentage3: | 16.6% |
| Swing3: | 16.6pp |
| 2Blank: | TPP swing |
| 1Data1: | 61.2% |
| 2Data1: | 5.8pp |
| 1Data2: | 38.8% |
| 2Data2: | 5.8pp |
| MP | |
| Before Party: | Country Liberal Party |
| After Party: | Country Liberal Party |
A by-election for the seat of Port Darwin in the Northern Territory Legislative Assembly was held on 11 March 2000. The by-election was triggered by the resignation of former CLP Chief Minister Shane Stone. The seat had been held by Stone since 1990.
The CLP selected Sue Carter as its candidate. The Labor candidate was Ian Fraser. Former Labor candidate for Fannie Bay Susan Bradley contested as an Independent.